MPEC 2004-U10 : COMET C/2003 S4 (LINEAR)

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M.P.E.C. 2004-U10                                Issued 2004 Oct. 18, 15:52 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                           COMET C/2003 S4 (LINEAR)

Observations:
    CK03S04a  C2004 10 13.09387 03 12 41.55 +18 59 27.9          21.3 N EU010A33
    CK03S04a  C2004 10 16.07397 03 11 38.17 +18 30 10.2          20.8 N EU010941
    CK03S04a  C2004 10 16.07855 03 11 38.12 +18 30 08.3          20.8 N EU010941
    CK03S04a  C2004 10 16.08885 03 11 37.98 +18 30 02.1          20.9 N EU010941
    CK03S04a  C2004 10 17.01103 03 11 17.70 +18 20 46.9          21.0 N EU010941
    CK03S04a  C2004 10 17.01446 03 11 17.60 +18 20 44.8          21.3 N EU010941
    CK03S04a  C2004 10 17.01790 03 11 17.52 +18 20 43.1          21.1 N EU010941
    CK03S04a  C2004 10 17.01905 03 11 17.49 +18 20 42.5          21.0 N EU010941
    CK03S04b  C2004 10 13.09387 03 12 42.19 +18 59 26.7          21.2 N EU010A33
    CK03S04b  C2004 10 16.07397 03 11 38.95 +18 30 08.3          21.0 N EU010941
    CK03S04b  C2004 10 16.07855 03 11 38.89 +18 30 05.9          20.8 N EU010941
    CK03S04b  C2004 10 16.08885 03 11 38.74 +18 29 59.8          20.9 N EU010941
    CK03S04b  C2004 10 17.01103 03 11 18.20 +18 20 47.3          20.8 N EU010941
    CK03S04b  C2004 10 17.01446 03 11 18.10 +18 20 45.3          20.9 N EU010941
    CK03S04b  C2004 10 17.01790 03 11 17.99 +18 20 43.2          20.8 N EU010941
    CK03S04b  C2004 10 17.01905 03 11 17.97 +18 20 42.6          20.8 N EU010941

Observer details:
941 Observatorio Pla D'Arguines.  Observer R. Ferrando.  0.36-m f/6.3
    Schmidt-Cassegrain + CCD.
A33 Volkssternwarte Kirchheim.  Observer B. Brinkmann.  0.5-m f/3.7 reflector
    + CCD.

Orbital elements:
    C/2003 S4-A (LINEAR)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 26.61697 TT                                  MPC
q   3.8589574            (2000.0)            P               Q
z  +0.0254238      Peri.  154.44995     +0.87265388     -0.17318158
 +/-0.0000045      Node   224.55127     +0.25496247     +0.95902662
e   0.9018906      Incl.   40.60548     +0.41649652     -0.22422328
From 144 observations 2003 Sept. 26-2004 Oct. 17, mean residual 0".57.

    C/2003 S4-B (LINEAR)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 26.62402 TT                                  MPC
q   3.8588887            (2000.0)            P               Q
z  +0.0254213      Peri.  154.45154     +0.87264572     -0.17321549
 +/-0.0000044      Node   224.55186     +0.25499713     +0.95901832
e   0.9019019      Incl.   40.60526     +0.41649239     -0.22423259
From 149 observations 2003 Sept. 26-2004 Oct. 17, mean residual 0".56.

     The "original" and "future" barycentric values of 1/a for C/2003 S4-A
are +0.025071 and +0.025582 (+/- 0.000004) AU^-1, respectively; those for
C/2003 S4-B are +0.025069 and +0.025579 AU^-1.

Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-U10

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